Machine for scoring and cutting paper



2 Sheets-Sheet 1..

.(ModeL) J. 0. MARSHALL; MACHINE FOR SCORING AND CUTTING PAPER.

Patented Jan. 10,1882.

J 0 MARSHALL MAGHINE FOR 300mm AND GUTTING'PAPER. No. 252,114.

.provemcnts applied thereto.

UNITED STATES PATENT OFFICE.

JAMES C. MARSHALL, OF BOSTON, MASSAOH USETTS.

MACHINE FOR SCORING AND CUTTING PAPER.

SPEOIFICATIONforming part of Letters Patent No. 252,114, dated January 10, 1882. Application filed February 14, 1881. (Modch) To all whom it may concern:

Be it known that I, JAMES C. MARSHALL, a citizen of the United States, residing at Boston, in the county of Suffolk and State of Massachusetts, have invented certain Improvements in Machines for Scoring and Cutting Paper for Boxes, 850., of which the following-is a full, clear, and exact description, reference being had to the accompanying drawings,inaking part of this specification, in which- Figure 1 is aperspective view of a paper scoring and cutting machine having my im- Fig. 2 is a vertical section through the same. Fig. 3 is a verticalsection on the line mac of Fig.2. Fig. etis a section on the line 3 y of Fig. 2. Fig. 5 is a plan of the machine with the cutter-bar swung to one side.

My present invention relates to certain improvements in machines for scoring and cutting paper for boxes, 850., and particularly to the construction of the cutter-holders which carry the revolving disk-cutters and the cutterbar or carrier-shaft upon which they slide, which bar is arranged horizontally over the bed or table on which the paper rests; and my invention consists in a cutter-holder made in a single piece and provided on its inner periphery with a sliding block made to conform on its inner side to the curvature-of the surface of cutterbar contiguous thereto, and

it adapted to be forced firmly into contacttheiewith by means of a screw to clamp the holder when adjusted in any desired position for scoring or cutting the paper, whereby I am enabled to dispense with the adjusting mechanism heretofore applied to the cutterrholders of machines of this description, which necessitated the formation of alongitudinal groove or grooves in the cutter-bar, and also avoid the use of the set-screws hitherto employed in connection with the adjusting mechanism to clamp the holder when adjusted, which setscrews are objectionable, as their inner ends come into direct contact with and indent and mar the surface of the cutter-bar on which the holders slide, and often fail to hold the cutters tion, with a cutter holder or holders, of a cutter-bar or carrier-shaft pivoted at one end, in order to allow of its being readily swung to one side to enable the cutter holder or holders to be placed thereon or removed therefrom, and provided at its opposite end withaclamping or fastening device for holding it firmly in place when returned to its proper operating position. 7

In the said drawings, A represents the main roller, by means of which the paper to be scored or cut is moved over the bed or table B.

O is the cutter-bar or carrier-shaft, which is of circular form in cross-section and is secured upon two standards, I) E, in a horizontal position immediately over the roll A and at the desired distance therefrom.

G G represent the cutter holders, any desired number of which may be employed, these holders being mounted upon the cutter-bar G, on which they are adapted to slide longitudinally or be swung up or down, in order that therevolving disk-cutters a may be set or adjusted at any desired distance from each other or from the surface of the roll A. Each of these cutters a, which are of the usual form employed in machines of this description, is

secured by means of a flat-headed screw, b, to

ers being in a reversed position, as seen on the left-hand side of Fig. l) to be brought much nearer together, which is oftentimes a great ggmyenience. j

'The cutter-bar O is pivoted at one end to the top of the standard D by means of a screw bolt or pin, (1, the head of which rests on a washer, c, which construction allows the bar to be readily swung to one side, as seen in Fig. 5, to enable the cutter-holders G to be slipped over its end in putting them on or taking them off the bar for repairs or other purposes. The free end of the bar 0 is provided with an open slot, f, into which, when the bar is swung back into its working position, as seen in Fig. 1, enters a clamping-screw, H, by tightening which the bar is held immovably in position, a washer, g, immediately beneath the flat head of the screw bearing firmly upon,

the. upper surface of the bar.

A spring-catch or other suitable fastening device may be used instead of the clampingscrew H for confiningthe free end of the bar 0.

Each cutter-holder G is made of a single piece of metal of the form seen in Figs. 1 and 2, having at its upper end an enlargement, h, within the lower portion of which is fitted a sliding block, 70, having at its opposite ends V- shaped grooves 15, Fig. 4, into which fit correspondingly-sha )ed guides 6, formed at the opposite ends of the recess in which the block is fitted. The inner face of the block is is shaped to correspond to the curvature of the surface of the bar 0, on which it rests, and is forced firmly down thereon by means of a screw, m, to clamp the holder G- when adjusted in any desired position for scoring or cutting the paper, and thus when an adjustment is required it is merely necessary to loosen the screw m and'then move the holder G longitudinally upon the bar 0, or turn it thereon to swing it up out of its operating position, or until the cutter a is brought into the desired position to score or cut the paper on the roll A, when, by a single turn of the screw m, the entire inner surface of the block it is brought into contact with the surface of the bar (J, and the holder thus clamped firmly thereto, all liability of slipping being avoided, as a much greater amount of friction is created by the extended surface of the block than is the case where an ordinary set-screw is employed, as heretofore, to clamp the cutter-holder in place upon the cutter-bar, while the indenting and marring of the surface of the bar by the point of this set-screw is also avoided, which is a very important'advantage. Furthermore, no complicated adjusting mechanism or longitudinal groove or grooves in the cutter bar G, which add materially to the cost of the machine, are required, while the ease and rapidity with which the cutter-bar can be swung round on its pivot (1 enables the cutter-holders to be quickly removed for repairs, or for the purpose of replacing them in reversed positions, if

desired, without taking the machine to pieces.

The above-described cutter-holder possesses the advantages of simplicity of construction, combined with cheapness, strength, and durability, while the capability of its being adjusted by hand and then tightly clamped without change of position is found in practice to be a great convenience, as the adjustmentcan in many cases be performed wit-h a greater degree of nicety by hand than with the mechanism heretot'ore employed, as the operation of clamping the holder when adjusted by this mechanism often caused the cutter to be moved out of the position in which it was set, which is not the case with my improved clamping device, applied as above described.

I am aware that heretofore machines have been made for cutting paper wherein a pivoted bar capable of being swung around was used as a mandrel, in a paper-cutting machine, to receive a paper tube and sustain it while it was being cut into desired lengths.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. In a rotary paper-cutter, a cutter-holder, 4

G, provided with a slot, 6, cut from the circular bearing-opening, and a set-screw, m, as shown, in combination with an inserted sliding block, 7c, having its lower face curved, the bar 0, and the rotary cutter a, all constructed, arranged, and operated substantially as described.

2. In a machine for scoring and cutting paper, the combination, with a cutter holder or holders, of a cutter-bar or carrier-shaft, O, pivoted at one end at d, in order to allow of its being swungto one side to enable the cutter holder or holders to be placed thereon or removed therefrom, and provided at its opposite end with a clamping or fastening device for bolding it firmly in place when returned to its proper working position, substantially as described.

Witness my hand this 9th day of February, A. D. 1881.

JAMES C. MARSHALL.

In presence of- W. J. CAMBRIDGE, P. E. TESCHEMAOHER. 

